Coupling for sectional rods.



R. H. VILLARD.

GOUPLING FOR SEGTIONAL RODS.

APPLICATION PILPD sIzPT.1s,19o6.

2 SHEETS-SHEET 1.

Patented May 11, 1909.

WlTNESSES:

ATTORNEY R H VILLARD GOUPLING POR SECTIONAL RCDS. APPLIUATION FILEDsBPT.1s,19oe.

UNITED srrirns earnnronnron.

RICHARD H. VILLARD, OFROCHESTER, NEW YORK, ASSIGNOR TO THE DIAMONDEXPANSION BOLT COMPANY, OF NEW YORK, N. Y.,A CORPORATION OF NEW YORK.

COUPLING FOB SECTIONAL RODS.

Specification of Letters Patent. Y

, Patented May 1l, 1909.

Application filed. September 18, 1906. Serial No. 335,085.

To all whom it may concern: i

Be it known that I, RICHARD H. VILLARD, a citizen of the United States,and a resident of Rochester, inthe county of Monroe and State of NewYork, have invented certain new and useful Improvements in Couplings forSectional Rods, of which the following is a specification, taken inconnection with the accompanying drawings, which form a part of thesame. n

My invention relates to that class of coup# lings for sectional rodsused in underground conduits and is an improvement upon my Patent684,732, patented October 15, 1901.

In the accompanying drawings showing illustrative embodiments of thisinvention in ling. through the coupling, shown in Fig. 8.

. the female coupling member.

which the same reference numeral refers to similar parts in the severalfigures, Figure 1 is a side elevation of a coupling rod embodying myinvention.' Fig. 2 is a longitudinal vertical section through one 'ofthe couplings. Fig. 3 is a transverse vertical section on line 3 3 ofFig. 2. Fig. 4 is a longitudinal vertical section of a female couplingmember. Fig. 5 is a longitudinal vertical section of the male couplingmember. Fig. 6 is a plan of the male coupling member. Fig. 7 is a planof the coupling showing the male andfemale members in operativeposition. Fig. 8 isi'a side elevation of my preferred formV of coup-Fig. 9 is a longitudinal vertical section Fi 10 is a transverse verticalsection on linge 10-10 of Fig'. 9. Fig. 11 is aside elevation ofthe malecoupling member. Fig. 12 is a side elevation, partly in verticalsection, of Fig. 13 is a plan view of the male and female members shownin operative position. Fig. 14 is a transverse vertical sectionsubstantially on line 14-14 of Fig. 13.

In the illustrative embodiments of this in vention shown in thedrawings, 1 is a rod ber are guides 6 upon either side of the lip 5 (seeFigs. 2 andy 4) and depending from the uppervportion of the interior ofthe coupling is a wedge-shaped locking lug 7 having the inclined surface8, which is cut away at 9, to

permit tooth 10 of the male coupling memhas thev inclined wings 13, 13,Fig. 6.

ber 3 to engage with the inclined surface 8 of the locking lug 7. Thismale coupling member 3 consists of a substantially hollow cylindricalportion 11 and the enlarged hollow conical portion 31 from which extendsthe head 12, upon which is mounted the tooth 10; upon either side of thehead 12 this topgth e.. tween the conical portion 31 of the member andthe headv I provide the vertical abutments 14, 15 Fig. 5, and thehorizontal shoulders 16, Fig. 1, preferably forming 14 and 15 indifferent` planes. I also preferably form the lower side of the head 12inclined, as shown at 30. Between this inclined surface 30 and thevertical abutment 14 I form a locking recess 17 and I provide the head12 with an orifice 18 so that a pin or other suitable instrument may beinserted therein to contact with a wedge 19 in the end of the rod 1 sothat suitable pressure may be brought to bear upon the wedge to expandthe ends of the rod 1 against the interior surface of the conicalportion 31, making a firm connection between the rod 1 and the male`coupling' i member 3.

I have shown the female couplingl member 2 provided with trunnions 20-20Fig. 3, upon which I mayinount the anti-friction wheels 21, 21 securedupon the trunnions by the washers 22 held in position by means of thescrews 23. To assist the couplings passing any obstruction that may bein theconduit I preferably employ guide lugs 24, 24 on either side ofthe female coupling member which will coperate with the anti-frictionwheels 21, 21 and permit the coupling rod being forced past theobstruction. I may also cast or otherwise secure in the cou pling member3 a plate 27 having an aperture 28 through which any suitable tool maybe inserted to force the wedge 29 into the end of the rod 1, expandingit until it engages with the hollow conical ortion 32 of the femalecoupling 2 which alIso hasa cylindrical portion 33.

To make quick and rigid connection, all that is necessary is to placethe head 12 of the male coupling 2 within the female coupling 2 andbring the tooth and wings 13, 13 into contact with the inclined surface8 of the locking lug 7. Downward ressure on the members to bring theminto iorizontal alinev13 to move on the inclined surface 8 of the'locking lug "7, bringing the two coupling members 2 and 3 closelytogether and causing the lip 5 of the cou ling 2 to engage in thelocking recess 17 of t e coupling member 3, and at the same timebringing the vertical abutments 4 and 25'of the female member` intocontact respectively with the vertical abutments 14 and 15 of the malemember, the horizontal shoulders 26 of the female member. 2 being at thesame time brought into engagement with the horizontallshoulders 16 ofthe male member 3.

In the preferred form of my coupling shown in Figs. 8 to 14, I providethe hollow part of the male member 35 with the cylindrical portibn 36,and the conical portion 37, from which extends the head 12, carrying thevertical tooth 38. A recess 17 is provided on the under surface of thehead between the vertical abutment 14, and the wedge surface 39 of theboss 48. The abutment 43 of the conical portion 37 is preferably bothundercut and convex as shown in Figs. 9, 11 and 13 and engages with thecomplementary concave surface 44 of the female coupling 34. This lattercoupling is formed hollow, a portion 33 of its interior surface beingshown cylindrical, and a portion 32 conical; within t e conical portionis mounted the end of rod 1, which is expanded by means of the wedge 29,by a suitable tool, (not shown) passing through the opening 28 in theplate 27. It is to be understood of course, that all the wedges such as19 and 29 are inserted in slots or kerfs in the ends of the wooden rods1, 1

lbefore the ends of the wooden rods are intro- Icarried by the head 12.

eratewith the surface 40 of the upwardly extending lip 5. In thispreferred form I may castthe hollow trunnions 45, directly on the femalemember 34, and after the anti-friction wheels l21 are seated upon thesame., the ends yof the trunnions can be upset as shown at 46 by anysuitable tool, so as to engage in the recesses 47, -of the anti-frictionwheels and securely hold them in position, it being understood ofcourse, that the female member ma be used either with anti-frictionrollers an guidel lugs 24, as shown in`Fig. 13,`or without them as shownin Fig. 8. In this form of m invention, it is merely necessary to insertt e head 12 into the female coupling 34, until the tooth 38 is locatedin the recess 42 formed by the plate 27 and the lug 41, when downwardmovement upon the coupling members to bring them into alinement,

yber having a head, a tooth carried will cause the wedge surface 39 tocoperate' with the surface 40 of the lip 5, causing the tooth 38 toengage with the lug- 4l, and firmly lock the coupling members togr ther,as shown in Figs. 8 and 9.

By the use of this invention coupling rods are firmly and rigidlyconnected. together and the parts are so arranged that a firm and rigidconnection is made the moment that the male coupling member is placedwithin the female coupling member and fix-:night to its seat.

Having thus. described this invention in connection with severalillustrative embodiments thereof, to the details of which l do notdesire to be limited, what is claimed as new and what is desired tosecure by Letters Patent is set forth in the appended claims.

1. In a device of the character described, the combination of a hollowsubstantially cylindrical 4female coupling member, a rigid lipsubstantially at the end of the female member, a locking lug mountedwithin the female member and protected .by the walls of said member, aplurality of substantially vertical abutments on said female member, asubstantially cylindrical male cou )ling memby the head to coperatewiththe lug carried by the female member, said male member having alocking recess to cooperate with the lip carried by the female member,and a plurality of'substantially vertical'abutments on the male memberto cooperate with the substantially vertical abutments carried by thefemale member.

y y2. In a device of the character described, the combination .of ahollow' substantially cylindrical female coupling member, a rigid lipcarried by the female member, a locking lug mounted within the femalemember and protected by the walls of said member, a lurality ofabutments on said female mem er,

a substantially cylindrical male coupling member having a head, a toothcarried by the head to coperate with the lug carried by the femalemember, said male member having a locking recess to coperate with thelip carried by the female member, a plurality of abutments carried bythe male member to co erate with abutments carried by the feconsistingof a hollow cylindrical portion and a hollow conical portion, a headextending out from the conical portion and provided with an orifice, atooth uponthe end of the head,

4there being a locking recess in the male coupling, a female lockingmember, having a lip to coperate with the locking recessof the Y malecoupling, a lip carried by the female member, to coperate with the toothof the male coupling member.

4. In a device of the character described, a hollow male coupling memberhaving va substantially cylin rical, and a substantially conicalinterior `surface; a head provided with an oriiice, a locking tooth, andan inclined or wedge surface and a locking recess a holl'owfemalelocking member having a substantially cylindrical and a substantiallyconical interior surface; a plate provided with an o 'ening in saidfemale member, a downward y extending lug4 to engage with the toothcarried bythe head; and an upwardly extending lip to coperate with .therecess carried` by the head.

5. In a vdevice of the character described, a hollow male cou lingmember having a substantially cylin rical and a substantially conicalinterior surface; a head provided with an orifice through the head,- alocking tooth, an inclined omwedge surface, and a locking recess;ahollow female lookin member having a substantially cylindrica and asubstantially conical interior surface, a plate provided with an o eningin said female member, a downward yextending lug to engage with thetooth carried by the head, an

upwardly extending lip to coperate with the' recess carried by the head,a convex abutment carried by the male member and a concave abutmentcarried by the female member to cooperate with it.

6. In a device of the character described, a hollow male coupling memberhaving a substantially cylindrical and a substantially conical interiorsurface, a head rovided with an orifice through the head, a ockingtooth, an inclined or wedge surface, and a locking recess, a hollowfemale locking member having a substantially cylindrical and a-substantially conical interior surface, a plate provided with an oening in said female member, a downwar y extending lug'to engage withthe toth carried by the head, an upwardly extending li to coperate withthe recess carried by the ead, one of the coupling members beingprovided with integral trunnions, anti-friction wheels mountedv on thetrunnions and means for fasteningthe anti-friction wheels on saidtrunnions.

7. In' a device of the character described, a hollowl male couplingmember having a substantially cylindrical and a substantially conicalinterior surface, a head having an orifice, a lockingl tooth, aninclined or wed e surface, and a locking recess, a hollow fema e.locking member having a substantially cylindrical and a substantiallyconical interior surface, a plate in said female member provided with anopening, `adownwardly extending lug to engage with the tooth carried bythe head, van upwardly extending lip to cooperate with the lockingrecessv in the head, one of the coupling members being provided withintegral trunnions, anti-friction wheels mounted on the trunnions, andthe ends of the trunnions being upset to fasten the antifriction wheelsin place.

8. Ina device of the character described, a hollow male coupling memberhaving a substantially cylindrical and a substantially conical interiorsurface, a head having an oritice, a locking tooth, an inclined or wed esurface, and a locking recess, a hollow fema e locking member having aVsubstantially cylindrical and a substantially conical interior surface,a plate in said female member provided `with an opening a downward]tending lug to engage with the tooth carried .by the head, an u wardlyextending lip to cooperate with the ocking recess in the head, one ofthe coupling members being provided with integral trunnions,anti-frictlon wheels mounted on the trunnions, the ends of the trunnionsbeing upset to fasten the antifriction wheels in lace and guide lugsmounted on the coup ing and'protecting the tread of the friction wheels.

RICHARD H. VILLARD.

` Witnesses:

JEssrE B, KAY, .ALAN M. JOHNSON.

